Multi-element intermediate alloy for impure copper refining, preparation thereof and application thereof

A technology for master alloy and purple miscellaneous copper, which is applied to the multi-element master alloy for the refining of purple miscellaneous copper and its preparation and application fields, can solve the problems of complicated operation, high cost, poor effect, etc., and achieves the reduction of Fe content, brittleness, The effect of shortening the refining time

Active Publication Date: 2017-02-15
JIANGXI BAOTAI NON FERROUS METAL GRP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to solve the problems of complex operation, high cost and poor effect of the existing red copper remelting and refining method, and to provide a multi-component master alloy for red copper refining and its preparation and application, so as to realize purple copper refining. Equivalent or value-added recycling of copper

Method used

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  • Multi-element intermediate alloy for impure copper refining, preparation thereof and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Put the electrolytic copper into the smelting device for melting. The melting temperature is 1150℃~1160℃. Cu-P alloy containing 50% P element, Cu-La alloy containing 30% La element and Cu-B alloy containing 20% ​​B element are added to the copper melt and stirred until melting, electrolytic copper, Cu-P, Cu-La The weight and number ratio of Cu-B and Cu-B is 2:1:0.5:0.5, the melt is left to stand, the slag is discharged, and poured into a mold to form an intermediate alloy Cu-10P-3La-2B, which is broken into small pieces; using 100% Red miscellaneous copper is used as raw material, the ingot is prepared by the horizontal continuous casting method, and the T2 red copper bar is produced by the extrusion method; After refining the agent, fully stir the melt, remove slag and let it stand for 15-30 minutes before pouring. In the continuous casting process, the intermediate alloy fragments are regularly added to the melt in the heat-retaining casting furnace, the amount of ad...

Embodiment 2

[0020] Put the electrolytic copper into the smelting device for melting. The melting temperature is 1150℃~1160℃. Cu-P alloy containing 48% P element, Cu-La alloy containing 32% La element and Cu-B alloy containing 20% ​​B element are added to the copper melt and stirred until melting, electrolytic copper, Cu-P, Cu-La The ratio of parts by weight to Cu-B is 1:1:0.25:0.2, the melt is left to stand, the slag is discharged, and poured into a mold to form an intermediate alloy Cu-12P-2La-1B, which is broken into small pieces; using 100% Red miscellaneous copper is used as raw material, the ingot is prepared by the horizontal continuous casting method, and the T2 red copper bar is produced by the extrusion method; After refining the agent, fully stir the melt, remove slag and let it stand for 15-30 minutes before pouring. In the continuous casting process, the intermediate alloy fragments are regularly added to the melt in the heat-retaining casting furnace, the amount of addition ...

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Abstract

The invention belongs to the technical field of non-ferrous metal material processing, and particularly relates to a multi-element intermediate alloy for impure copper refining, preparation thereof and application thereof. A Cu-P-La-B multi-element intermediate alloy is adopted, and strengthened refining is carried out on impure copper in a smelting process and a casting process, so that good deoxidation and deslagging effects are achieved; the quality of a copper bar product produced by the alloy is equivalent to that of a copper bar which is produced by taking cathode copper as a raw material; and moreover, operations are simple and convenient, and cost is relatively low. According to the multi-element intermediate alloy, the preparation thereof and the application thereof, equivalent or value-added recycling of the impure copper can be expected to be realized, and the application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal material processing, and in particular relates to a multi-element master alloy for refining red copper and its preparation and application. Background technique [0002] my country's copper resources are scarce, and the recycling of scrap copper has become an important measure to make up for the shortage of copper resources. However, in the process of direct remelting and regeneration of waste miscellaneous copper, if the treatment continues, the quality of recycled products will be significantly reduced. It is an important part of my country's copper processing industry to use copper materials such as waste wires, cables, bus bars and other copper materials with relatively simple components to directly remelt to prepare copper materials for electrical, electric power, and electronics. At present, for the remelting and refining of red miscellaneous copper in the industry, phosphorus (P) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/03C22C1/06
CPCC22C1/03C22C1/06C22C9/00
Inventor 彭炳锋彭保太
Owner JIANGXI BAOTAI NON FERROUS METAL GRP
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